Homework # 10, due Friday, November 2nd.

Determine the maximum clock frequency (minimum clock period) that can
be used to clock the circuit in Figure 7.85 in your text.  Consider 
the case where they components are of the 74LS family (74LS74 flip-flops,
74LS86 X-or gates, 74LS08 and gates and use the timing parameters from 
class.  Then round the frequency down to a round number (nearest 10 if it is
below 100 HZ, nearest 50 if it is above 100 Hz) and calculate the "setup 
time margin", both as a time and as a percent of the minimum required clock 
period.

Repeat this process for the 74AHCT family..